Condenser for locomotives



F. LJUNGSTROM CONDENSER FOR LOCOMOTIVES Filed April 13, 1922 2 Sheets-Sheet l Patented Qct. 27,1925.

, A 1.55m marEurferries.-

rR-EDnrK LJUNGSTRQM,"O F LIDINQOBREVIK, SWEDEN, assrsivon TO AKTIEBOLAGET LJ'UNesTRoMs ANGTURBIN, F strooKHoLM. SWEDEN, A conronarron.

'oonnnnsnn FOR LOCOMOTIVES.

Application filed April 13, 1922. Serial No. 552,425.

To all whom it'may concern.

Be it known that l FREDRTK LJUNGsTRoM. a subject of theKingofjSweden residing at Lidingo-Brevik, Sweden, have invented Cetain' new and useful Improvements in Condensers for Locomotives. of which the following is a specification. V

In locomotives and Similar Carriages it has previously been'si'iggested 'to conduct 10 the steam passing); to the condenser through elements preferably consisting of flattened pipes placed at the side of one'another and played upon by cooling air forced by fans. .This invention relates particularly to condensers of this type that may also be applied to air cooled condensers orwater coolers oi other kinds. The object of the invention is to arr'angethe elements in such manner that the condenser occupies a reduced space especially in the longitudinal direction. To this purpose the invention consistsjchiefly in that the elements are placed intwo or more rows or groups, separate currents of cooling .air being supplied to the separate rows or groups. For each row or group a reduced length of the condenser is obtained, since the necessary'interspace between the groups of elements may always be taken less than the width of a group of elements. As each placing of the elements depends upon the necessary room which in case of locomotives is determined by the fixed loading gauge, the elements are to be placed in as many rows as is required in order that the condenser within the limited length shall be of suflicient size so as to be able to cool the received quantity of steam.

According to a suitable embodiment of the invention the elements in each of the rows situated one above the other are collected in groups with interspaces through which the cooling air flowing towards or from another row is passing. In this case the groups of elements of one row are pret' erably placed in front of the interspaces of the groups of elements ot the other row.

According to another embodiment the elements are disposed one above the other in groups which are placed in rows parallel or nearly parallel 'to one another and with interspaces.

The accompanying drawing illustrates these two embodiments applied to air cooled condensers for locomotives in which the steam is conducted to an air cooled condenser as well as to a liquid receptacle which under vacuum accumulates steam upon a large sup ply of waste steam to the condenser but in case of a smaller quantity of steamer no steam at all being supplied delivers' steam to the air cooled part which on I account Y thereof practically always has to cool steam. FigLl is a cross-section ofan embodi ment of the condenser and Fig.2 a par-' tial side view of the same. Figs. 3; l, 5

' and 6 are detail views showing the arrangement of the elements in groups.

Referring; to Fig. 1. 1 designates the-liquid accumulating receptacle, 2 a connecting pipe leading to the steam distrilmting; pipe 3 from which the steam issues to the elements 4: and 5. The condensate flows down through the collecting pipe 6 and the discharge pipes 7 to the liquid receptacle/1. 8 designates the fans which force the air from below-and upwards through the elements 4 and 5 of the air cooled condenser; In this case the elements are'arranged in groups which are placed in two rows one aboveand after another inthe direction of the current of air which passes the elements in the direction of the arrows.

In Fig. 2 the same parts are viewed from the side. the same reference numerals as in Fig. 1 being used.

Fig. i being a section of the elements on the line 44 in Fig. 1 illustrates how the elements placed in two rows are collected in groups 10 and 11 in the upper and lower row respectively. The groups of elements 10in the lower row are situated with a space 12 between one another, said distance being smaller than the width of a group of elements. The cooling air passes through these interspaces 12 to the groupsof elements 11 of the upper row, whereas the cool ing air having passed the groups of elements 10 of the lower row and consequently being heated andowing thereto having become unsuitable as cooling air passes through the interspace 14: between the groups of elements 11 of the upper row. The different groups of elements are connected by means of walls 15, 16 which alone or together with the elements form channels for the passage of the cooling air through the groups of elements, as described above.

Fig. illustrates in section on the line 33 Fig. 1 the same placing of the groups o1? elements, it being evident from said figure how the diiierent groups of elements are connected with collecting pipes 17. @ther locations in collecting pipes than that described above may of course be imagined. Thus for instance a large collecting pipe 17 may be connected to one or more groups of one or more rows.

In Fig. 5 the different groups of elements 20 and 21 are placed right above one another, obliquely located walls being disposed for conducting the air, as described in connection with Fig. lf. This placing or the groups of elements allows advai. .5 geo-usly the arrangement of one group of elements of each row in the same collect ing pipe 17.

Fig. 6 illustrates the location of groups of elements in three rows and besides how these groups are interconnected by walls in such manner that the same cooling air passes only through one group of elements, the air passing the groups tor instance in the manner shown by the arrows.

Obviously the elements may be situa ed in still more rows one above the other. Furthermore several modifications ot the invention may be imagined. Thus "for instance the elements may be shaped otherwise for instance provided with flanges at the outer side or with increased faces produced in other manner. The elements may also according to the invention be located in the longitudinal direction of the condenser or in other angular positions than those described above.

What I claim as new and desile to secure by Letters Patent of the United States is 1. A condenser tor locomotives consisting oi cooling elements located side by side, fans for forcing air between said elements, said cooling elements being arranged in groups and said groups arranged in rows one above the other, means forming channels between the several groups whereby separate currents of air are supplied to the difrerent groups.

2. ii condenser for loeon'iotives consisting of cooling elements located side by side, fans for forcing air between said elements, said cooling elements being arranged in groups and said groups arranged in rows one above the other, the groups of elements o1 one row being situated over the interspaces between the groups of elements of the other row, and means forming channels whereby separate currents of air are supplied to dili'erent groups.

A condenser for locomotives consisting o1 cooling elements located side by side, itans forcing air between said elements, said cooling elements being arranged in groups and said groups arranged in rows one above the other, and means forming channels whereby separate currents of air are supplied to the different groups, said means comprising plates connecting the groups of one row with those of the other.

In testimony whereof I aitix my signature.

FREDRIK LJUNesTRoM. 

